HIGH QUALITY of Peeso Reamers with Medical Stainless Steel * made of high quality medical stainless steel * good flexibility and fracture resistance * with high quality cutting efficiency * with triangle cross section * recommended rotary speed of engine file is 250-350r/min * with fixed plastic washer * packed with 6 pcs files/box, available of single size or assorted size SIZE: 1#, 2#, 3#, 4#, 5#, 6#, in length of 28mm, 32mm